Firstly, the yeshiva had an off Shabbos at the time, so no missed seder.
The ball actually did fall out when he hit the seats. This was confirmed by one of the TV commentators who was standing on the LF concurse.

Dear Eli #7.
It is a very sad situation that yourself and many others have an issue with a child or a young man or anyone for that matter experiencing an extremely human activity in life. Get your head out of your own broken spine of a book.